Dorman 973-233 HVAC Blower Motor Resistor

Brand Dorman 973-233
Bolt Hole Quantity 2
Terminal Type Blade
Wire Quantity 0
Connector Quantity 1
Connector Shape Square
Terminal Quantity 4
Connector Gender Female
Terminal Gender Male
Wiring Harness Included No
Mounting Hardware Included No
Package Contents Blower motor resistor and instructions
Fits Dodge · 22 vehicles

Direct replacement. Matches original operation and performance for proper heating and cooling control.

Blade terminals. Square female connector with four male terminals for a straightforward connection.

Blower motor resistor. Restores proper blower speed control in the HVAC system.

Cross-references 5189134AA, JA1546 and RU661 for the same application. See all 4.

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Dorman 973-233 HVAC Blower Motor Resistor

Restore proper cabin airflow control with this direct replacement HVAC blower motor resistor from Dorman. Built to match original equipment operation and performance on select Dodge Ram trucks, it helps bring back the fan speeds needed for effective heating and cooling.

  • Direct replacement blower motor resistor for OE-style fit and function
  • Designed for select Dodge Ram 1500, Ram 2500, and Ram 3500 applications
  • Square 1-connector design with 4 male terminals and female connector gender
  • 2 bolt holes for mounting in the original location
  • Package contents include the blower motor resistor and instructions
  • Cross-reference part numbers include 5189134AA and RU661 for the same application

This Dorman 973-233 blower motor resistor is used to control blower motor speed in the HVAC system when the original resistor has failed or burned out. It is a practical replacement for Dodge Ram 1500, Ram 2500, and Ram 3500 trucks that need restored heater and A/C fan operation. The Dorman 973-233 is built for direct installation in the factory location and follows the original electrical layout with a blade terminal type and no wiring harness included.

Common Problems It Can Solve

  • Blower motor works on only one speed
  • Loss of lower or higher fan settings
  • No cabin airflow from the HVAC vents
  • Intermittent heater or air conditioner blower operation
  • Burnt or heat-damaged original resistor

Installation Notes

Verify connector shape, terminal count, and mounting style before installation. This resistor uses a square connector, 4 terminals, and 2 bolt holes, and it does not include mounting hardware or a wiring harness. For best results, inspect the blower motor and connector for heat damage before installing the new resistor.

Quality Assurance

Dorman designs this replacement resistor to match the operation and performance of the original equipment on the listed vehicles. It is intended as a direct replacement for select Dodge Ram HVAC systems, including 2002-2008 Dodge Ram 1500, 2003-2009 Dodge Ram 2500, 2003-2009 Dodge Ram 3500, and 2010 Dodge Ram 3500 without climate control.

  • Fits 2002-2008 Dodge Ram 1500, N/A
  • Fits 2003-2009 Dodge Ram 2500, N/A
  • Fits 2003-2009 Dodge Ram 3500, N/A
  • Fits 2010 Dodge Ram 3500, N/A, Exc. Climate Control
This part fits 22 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypePositionNotes
2010DodgeRam 3500Cab & ChassisN/AExc. Climate Control
2009DodgeRam 2500N/A
2009DodgeRam 3500N/A
2008DodgeRam 1500N/A
2008DodgeRam 2500N/A
2008DodgeRam 3500N/A
2007DodgeRam 1500N/A
2007DodgeRam 2500N/A
2007DodgeRam 3500N/A
2006DodgeRam 1500N/A
2006DodgeRam 2500N/A
2006DodgeRam 3500N/A
2005DodgeRam 1500N/A
2005DodgeRam 2500N/A
2005DodgeRam 3500N/A
2004DodgeRam 1500N/A
2004DodgeRam 2500N/A
2004DodgeRam 3500N/A
2003DodgeRam 1500N/A
2003DodgeRam 2500N/A
2003DodgeRam 3500N/A
2002DodgeRam 1500N/A
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
5189134AAJA1546RU661RU1351